Lots to answer there...
For the spells, the slash line was spells per day, but I was listing proposed spells known (which should be 9 per the SRD). Are those acceptable? Then we can move to 1st level.
Oh dang it, I must have still been thinking Wizard Spell rules.
I'm not in favour of the
acid splash and
touch of fatigue. How about swapping them?
Maybe for
ghost sound and
prestidigitation?
For icewalking, how about we remove it as basically redundant but add the immunity to grease separately?
There's no need to do that. The immunity is only to dragon's own freezing fog's SLA's
grease effect, not all grease effects.
We only need to change the line "The dragon is immune to the grease effect because of its icewalking ability" to make it "its spider climb ability".
We can also add a line to the Spider Climb ability "This ability also renders Pearl immune to grease effects such as that left by her
freezing fog spell-like ability."
Which reminds me, Sometime I should go through the text and replace a bunch of "its" with "her" as Pearl is a lady dragon.
1d3+48 hrs is fine for the luck bonus, though the randomized part is so small compared to the +48 that it just seems annoyingly fiddly. Would just 48 hrs work?
The 1d3 is in the original so I would rather include a dice variable. How about we increase it to 1d12 instead?
Hmmm. None of the original versions seem to have magic resistance listed, so we're kind of on our own.
We should give her an SR comparable to the other Dragon Rulers. We have Bahamut (CR 25, SR 30), Gruaghlothor (CR 25, SR 30), Tiamat (CR 25, SR 30) and Sardior (no CR given, SR 40).
So I guess CR 25 and SR 30 looks appropriate!
I was going to suggest looking at Ahi and Rahab for comparisons, but we didn't give them SR! Should we go back and do that? In any case, great wyrm gold dragons have SR 33, force dragons have 57, and prismatic dragons have 86, though perhaps that's getting beyond where we want to go with CR. If we go by HD for the epic dragons, we're more in the SR 40-55 range. I don't know, maybe SR 45ish?
Oops!
Rahab and Ahi had "Standard" magic resistance in their original AD&D versions, but we should give the upgraded versions Spell Resistance.
A standard SRD Dragon has a Spell Resistance of CR plus 6, which would give the CR 22 Rahab and Ahi SR 28.
However, these are unique dragons so could/might/should have a bit higher SRs.
For example, Sardior's Thanes have SRs of CR +6, +7, +8, +7, +7 and +11, while in the CC conversions we have An-Ur +11, Dhrakoth +12, Fafnir +15, Gaumahavi +6, Medrinia +9, Midgard +14, Mordukhavar +10, Nidhogg +11, Vanathor +11 and Vore Lekiniskiy +18.
So we've got numbers between CR +6 and CR +18 with CR +11 being the most common in the CC conversions.
I'd be OK with that (SR 33) or +10 for SR 32 or even +8 for SR 30.
Spell Resistance 33 or 32 feels more appropriate for Rahab or Ahi, although it does make Pearl's SR feel a little low.
Then, Pearl has that nifty "immunity to spells up to 6th level" thing going on as well.
Still, if you fancied tapping Pearl's Spell Resistance up a bit from the official 3E Dragon Ruler stats' SR 30 standard to, say, SR 36 I would make no great objection.
